Cleaning device.



L. L. FERGUSUN.

CLEANING Umm.

APPLIUATIN FILED JUNI-121. 1912. j ggggkih Eatnted. June 9, 19M

2 SHEETS-*SHEET 1.

in L. FERGSN.

GLEAMNG DEVICE.

APPLICATION TIL-ED JUNHZ'I, 1912. @@JJMQQ Paname@ June 9, 1914.

2 SERRES-*SHEET 2.

` posit the dust to thev rear of the wall 34,

. out.

` by means of end walls 39, which are secured on its` wheels.

flat against the outer surfaces of the side walls 38 and extend downward to nearly meet the-licor when the device is resting The brushv is rotated by means of friction disks 40 on the ends of its shaft 41, such disks engaging with driving wheels 43 which carry the weight of the forward part of the apparatus. The bottom of the brush housing 1s partly closed to the front and tothe rear of the brush by means of hinged dust pans 46, 46, which extend transversely across the bottom of the housing and-collect the dust which is swept up by its bristles. Each dust pan is set in an inclined position and is bent to form a wall l 48, 48, lying tangential to the curved plane generated by the rotating brush and is also provided with triangular end walls 49 'to prevent the spilling of dust.

The dust pans are pivoted on horizontal axes in order that they may be turned downward as indicated by the dotted lines in s Fig. l for the purpose of dumping their such edges, acts to retain the pans in either contents, being shown as pivoted in the sidev members 39 by means of pivot rods or shafts 50, which pass through their end walls 49. A curved spring 53, which engages at its ends with the edges of the dust pans between the shafts 50 and presses outward on of their two ositions as shown, such spring being .pivote at its center to a small lever 55 by means o1-whichsuch center part may be raised or lowered in order to operate the clust. pans; it being. evident that when such ends are moved either above'or below the plane of the twobearing shafts 50, the spreading apart of their lower ends will hold the dust pans in the position then assumed. The lever 55 is pivoted to the spring 53 by means of a vpivot pin 57 which passes through a slot in the wall 39 t0 permit of the required raising and lowering of such pivot pin, and is fulcrumed at one end to the side of such wall 39 by means of a screw 58.

The brush shaft 41 is mounted in bearings in the walls 39 but in such manner that its ends may be raised or lowered and may also be moved along a radius from the axis of the wheels 43. As shown in Fig. 5, each end of the shaft is mounted in a. small bearing member or journal member 60, and these journal members are placed in recesses in the walls 39 of sufiicient size to allow the journal members to move in all directions provide the necessary frictional engagement between the latter and the friction disks on the ends of the brush shaft. Similar springs 63, placed below the bearing members, carry the kweight of the forward part of the device by means of balance links or equalizers 66, which are pivoted to the 'walls 39 at about their centers, as indicated at 68, and carry the wheels 43 at their forward ends; such wheels being mounted on short stub shafts or pins 'TO lixed in the forward ends of the balance links, and the brush shaft passing through openings 72 in the rear ends of the links. Each opening is elongated in the direction of the common-radius through the wheel and friction disk in order to permit of the yielding pressure of the friction disk against the wheel by means of the springs62 above described. It will .be seen therefore that by means of the balance links 66, the weight of the forward part of the apparatus is carried on the wheels 43 through the springs 63, and the parts are so proportioned and the apparatus so balanced that when the device rests upon a smooth hard surface, such as a hardwood floor, the tips of the brush bristles will just meet the surface to be cleaned. and the cleaning nozzle, 27 will lie slightly above such surface and permit the air to enter the air slot. When the device,

however, rests upon a yielding surface, such as a carpet, the wheels 43 will sink into it until a part of the weight rests upon thenozzle 27, and such sinking or lowering of the wheels will correspondingly raise the brush shaft at the other end of the balance links and cause the bristles to brush lightly over such surface; as would ordinarily be required 1n removing the dust from the nap,

' l. In a cleaning device, suction creating means, a receptacle for dust, a suction nozzle adapted to assist in supporting said device, a Wheel also adapted -to assist in supporting said device, a rotative cleaning brush, and a link connecting said brush and wheel and centrally pivoted to said dust box to raise and 4lower them relatively to each other and to said nozzle according to the amount of load respectively carried by said wheels `and suction nozzle.

2. In a cleaning device,`suction creating means and a dust box detachably secured thereto and having a cleaningv nozzle comcoi-ding to the amount of lozid respectively 10 municating with its interior and suitably poi carried by Suid nozzle and said wheels.

f-:tioned to assist in supporting said device l In witness wl'lereof, I have hereunto sub- -when the latter is at rest on a, soft material f' scribed my name in the presence of two Wit-` 5 such :is a carpet, Wheels supporting said dust messes this 17th day of June, 1912.

box, n. brush, and links connecting said brush LEONARD L. FERGUSON. and said Wheels and centrally pvoted to said lVitnesses: dusty box to raise and lower them relatively i JOHN S. MORTENSEN,

to each other and to said cleaning nozzle zur i W. H. SHANE. 

